On Sep 1, 2:05 am, confused wrote:
anyone seen a surface mount part only markings on it are d k 9 z.it's on
a kenwood handheld tranceiver of mine which has burnt out.would
appreciate any info?
many thanks

--
confused

you need to do it logically and scientifically, which is the basis of
our hobby.

1.Get the service manual.
2.Get the part no, try Kenwood, if no go, then
3.Look at circuit diagram, identify component, replace with similar -
its unlikely to be critical.

I suspect you are out of your depth at this stage in your amateur
career, and perhaps it would be wise to seek the help of a local
technician or knowledgeable amateur - your local club could probably
help with contact details...

Andrew VK3BFA.

i checked the components characteristics .seemed to be two diodes on one chip.replaced it with two smt diodes and it works.
thanks for all your advice.